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Table 4

Molecular ratios of velocity-integrated intensities (and their error in brackets – see Sect. 2.2), measured in K km s-1, rounded to the first decimal point in most cases, for each region within the CND as well as in the starburst ring.

Ratios E Knot W Knot AGN CND-N CND-S SB ring

CO(2–1)/(1–0) 2.5 (0.4) 1.6 (0.2) 2.5 (0.4) 2.7 (0.4) 1.6 (0.2)
CO(3–2)/(1–0) 3.9 (0.7) 3.2 (0.6) 2.9 (0.5) 4.1 (0.7) 1.4 (0.3) 1.4(0.3)
CO(6–5)/(3–2) 1.2 (0.4) 0.6 (0.2) 1.1 (0.4) 0.9 (0.3) 0.9 (0.3)
HCO+(4–3)/HCO+(1–0) 0.6 (0.1) 0.3 (0.1) 0.5 (0.1) 0.3 (0.1) 0.3 (0.1) 0.1 (0.01)
HCN(4–3)/CO(3–2) 0.3 (0.1) 0.1 (0.03) 0.2 (0.04) 0.16 (0.03) 0.18 (0.03) 0.01 (0.003)
HCN(4–3)/HCN(1–0) 0.8 (0.1) 0.5 (0.1) 0.6 (0.1) 0.4 (0.1) 0.5 (0.1) 0.1 (0.02)
HCN(4–3)/HCO+(4–3) 2.5 (0.5) 2.8 (0.6) 2.1 (0.4) 2.2 (0.5) 2.7 (0.6) 1 (0.2)
CS(7–6)/CO(3–2) 0.004 (0.001) 0.0033 (0.001) 0.0091 (0.002) 0.0091 (0.002) 0.0160 (0.003)
CS(7–6)/(2–1) 0.4 (0.1) 0.25 (0.04) 0.4 (0.1) 0.4 (0.1) 0.5 (0.1)

Notes. For the CND, all the high resolution (0.5′′ or 35 pc) data have been reduced to a spatial resolution of 100 pc (1.4′′). Note that for the CS(7–6)/(2–1) ratio the common spatial resolution is 350 pc. For the SB ring the CO(3–2)/(1–0) ratio was measured at the common resolution of 100 pc, while the rest of the ratios were measured at 400 pc.

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